Wisconsin has designated many of the state's highest quality waters as Outstanding Resource Waters (ORWs) or Exceptional Resource Waters (ERWs). Waters designated as ORW or ERW are surface waters which provide outstanding recreational opportunities, support valuable fisheries and wildlife habitat, have good water quality, and are not significantly impacted by human activities. ORW and ERW status identifies waters that the State of Wisconsin has determined warrant additional protection from the effects of pollution. These designations are intended to meet federal Clean Water Act obligations requiring Wisconsin to adopt an 'antidegradation' policy that is designed to prevent any lowering of water quality - especially in those waters having significant ecological or cultural value.

Fish and Aquatic Life

The use the water currently supports. This is not a designation or classification; it is based on the current condition of the water. Information in this column is not designed for, and should not be used for, regulatory purposes.

The use that the investigator believes the water could achieve through managing "controllable" sources. Beaver dams, hydroelectric dams, low gradient streams, and naturally occurring low flows are generally not considered controllable. The attainable use may be the same as the current use or it may be higher.

This is the water classification legally recognized by NR102 and NR104, Wis. Adm. Code. The classification determines water quality criteria and effluent limits. Waters obtain designated uses through classification procedures.

Fish and Aquatic Life - Default Waters do not have a specific use designation subcategory but are considered fishable, swimmable waters.

Overview

Un Lake, in the Duck Creek Watershed, is a 1.35 acre lake that falls in Outagamie County. This lake is managed for fishing and swimming and is currently not considered impaired.

Date 2011

Author Biologist

Condition

Wisconsin has over 84,000 miles of streams, 15,000 lakes and milllions of acres of wetlands. Assessing the condition of this vast amount of water is challenging. The state's water quality monitoring program uses a tiered approach to analyze compliance with Clean Water Act fishable, swimmable standards. The Executive Summary of Water Condition in 2014 is available. See also 'monitoring' and 'projects'.

Management Goals

Wisconsin's Water Quality Standards (State Administrative Code NR 102) provide qualitative and quantitative goals for waters that are protective of Fishable, Swimmable conditions [Learn more]. Waters that do not meet water quality standards are considered impaired and restoration actions are planned and carried out until the water is once again fishable and swimmable.

Management goals can include creation and implementation of a Total Maximum Daily Load Analysis, habitat restoration work, partnership education and outreach and more. If specific recommendations exist for this water, they will be displayed below.

Monitoring

Monitoring the condition of a river, stream, or lake includes gathering physical, chemical, biological, and habitat data. Comprehensive studies often gather all these parameters in great detail, while lighter assessment events will involve sampling physical, chemical and biological data such as macroinvertebrates. Aquatic macroinvertebrates and fish communities integrate watershed or catchment condition, providing great insight into overall ecosystem health. Chemical and habitat parameters tell researchers more about human induced problems including contaminated runoff, point source dischargers, or habitat issues that foster or limit the potential of aquatic communities to thrive in a given area. Wisconsin's Water Monitoring Strategy is in the process of a major update in 2014.

Watershed Characteristics

Unnamed is located in the Duck Creek watershed which is 151.61 mi². Land use in the watershed is primarily agricultural (63.36%), forest (13.82%) and a mix of suburban (7.79%) and other uses (15.03%). This watershed has 302.11 stream miles, 2,064.01 lake acres and 8,189.35 wetland acres.

Nonpoint Source Characteristics

This watershed is ranked high for streams, not available for lakes and high for groundwater and therefore has an overall rank of high.This water is not ranked for pollution runoff.

Natural Community

Un Lake is considered a Small under the state's Natural Community Determinations.

Natural Communities are identified based on modeled flow and temperature characteristics. Learn More

Small lake describes the size of small isolated waters. These variables affect the lakes response to watershed variables.